Specifications:

Manufacturer's Part Number:

10900

Gear Sets for Your Racing Needs

J.W. Performance offers three levels of gear sets for your racing needs. The first two options are gear sets with a high level of quality to accommodate brutal horsepower. The last option offers the ability to accommodate up to 1400hp, at a reasonable price.

Features:

Short or Long Lengths

3 Levels of Gear Sets

Material Terms:

Stock Parts: made from lower grade steels like 8620

620: A general use gear steel good for most gear uses

9310: A high quality chromoly steel used for extreme gear uses. Also known as Vaccu-Melt

Hardened steel: Usually 4340 steel that has been heat treated to a good hardness level

300M: A trade name for a very good quality steel that has excellent tensile
and yield strengths

Vasco: Another trade name for an extremely high quality steel with better tensile and yield strengths than 300M. This is currently the highest
grade used in Powerglide transmissions.
Gearset Guidelines: